Machine for forming and welding rings



;No Model.) J H HASKINS 2Sheets.Sheet 1.

MACHINE FOR FORMING AND WELDING RINGS. No. 554,687; r Patented Feb. 18, 1896.

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J. H. HAsKINs; MACHINE FOR FORMING AND WELDING RINGS I No. 554,687. Patented Ieb. 18 1-896.

UNITED STATES PATENT OFFICE.

JAMES H. IIASKINS, OF CHICAGO, ILLINOIS.

MACHINE FOR FORMING AND WELDING RINGS.

SPECIFICATION forming part of Letters Patent No. 554,687, dated February 18, 1896.

Ap lication 5 October 22,1894. Serial No. 526,611. (No model.)

My invention relates to improvements inring forming and Welding machines in which parallel shafts carrying rolls wrap the straight pieces of heated metal fed to them about one of the rolls, while the companion roll welds the lapping ends of the metal, and then the shaft and roll around which the ring is formed separates and the ring falls from the machine,

after which the shaft comes together, bringing the roll into position, and the operation is again repeated. I attain these objects by the mechanisms illustrated in the accompanying drawings, in which-- Figure 1 is a side elevation with parts of the frame and bed-pieces of the machine broken away to more clearly show the construction, while the driving-pulley is in section to show the clutching devices. Fig. 2 is an end elevation from the left of Fig. 1. A portion of the rim of the driving-wheel is broken away, so that the unclutching devices may be more clearly shown. Fig. 3 is a section in elevation on line 3 3 of Fig. 1, showing the V-ways and the inclined chute. Fig. 4 is an enlarged view of the rolls and their shafts removed from their bearings, with the lower one partly in section to show more clearly the form of the way through which the ring passes. Fig. 5 is a similar View to that shown in Fig. 4:, but with the two portions of the lower roll drawn apart. Fig. 6 shows the completed ring as formed from a straight rod with tapered ends, the rod being as represented by the broken lines. Fig. '7 is an elevation, partly in section, on line 7 7 Fig. 1, of the shipping cam and rod and the driving-pawl. Figs. 8 and 9 are perspectives of the end of the shipping-rod and driving-pawl, and Fig. 10 is a View of the driving-disk.

Similar letters refer to similar parts throughout the several views.

The table or bed-plate A, mounted upon the framework B, constitutes a foundation, to which the operative parts of the machine are attached. The horizontal shaft 0 is the prime shaft of the machine, and is mounted in bearings C O, that are bolted to the liedplate A at each end of the machine. The

driving-pulley D is loosely mounted upon one end of this shaft and is fitted with clutching mechanism, which will be described hereinafter, to lock it to the fixed ratchet-disk D, which is keyed to this shaft. This shaft also carries the die-roll E, which is slightly grooved on its periphery. Gears or rather gear-wheels F F are keyed to this shaft to give motion to the parallel shafts that carry the grooved dierolls that when brought together make up the companion roll for the roll E. A third gearwheel G is fixed to this shaft. It gives motion to a parallel shaft, which will hereinafter be described, also mounted upon the machine.

The bearings O, in which the horizontal shaft 0 is mounted, are of sufficient height above the bed-plate A, so that shafts H H, parallel to the horizontal shaft 0, can be located beneath it in bearing-blocks I I, which are journaled on the main shaft 0 and rest in V-shaped grooves t' t' on the bed-plate A. These shafts H H carry at their inner ends grooved die-rolls J J rigidly fixed to them, and at their outer ends the gear-wheels K K, which mesh with the gear-wheels F F on the horizontal shaft 0, and are actuated by them.

The bearing-blocks I I carry at their lower extremities rollers L L, which are actuated by cams which will hereinafter be described. These bearing-blocks, carrying the parallel shafts H with their attached parts, are of such width that they can slide on the horizontal shaft 0 above and in the V- shaped grooves '5 t' in the bed-plate A. The companion grooved die-rolls J J can thus be separated whenever desired. As a means of separating the grooved rolls J J a shaft M is located in bearings-M M M, attached to the bed-plate A in such position upon the frame of the machine that the cams N N,which are fixed on the shaft M, will receive the rollers L L from the bearing-blocks I I. This shaft is actuated by the gear-wheel M meshing with the gear- Wheel G on the horizontal shaft 0.

That the cams N N may be adjustable to open the bearing-blocks I I to a greater or less extent they are held in place on the shaft M by means of jam-nuts N N N N. On the outer end of the shaft M and forming a part of the unelutching mechanism is keyed a ring 0. Beside this on the shaft M is loosely mounted the cam 0 An ear 0 from the ring 0 projects into the path of the cam 0 so as to encounter an ear 0 on this part. A connecting-rod P, through the lower lever P and foot-lever P brings this part within reach of the attendant. A shipping-arm Q, is loosely mounted so as to slide in a bearing Q that is fastened to the bed-plate A on the machine in such position that the roller in its lower end is in the path of the cam O on the end of the shaft M. This shipping-arm Q is, by means of a spring q interposed between it and a fixed part of the machine, held out of contact with the pawl Q, in the driving-pulley D. One end of the shipping-arm Q has a diagonal reach q, that engages with a similar reach on the pawl Q, so that when the reach of the one encounters the other the lock is forced against a spring in the driving-wheel and carried from engagement with the fixed dri vin-g-disk D, and the machine is uncoupled from its source of power.

Special attention is calledto theform of the grooved disks J J. It will be noticed that when brought together they form a die-roll somewhat more than half of thecircumference of a circle. The heated metal being fed into the rolls is thus pinched into the grooves formed by the rolls J J and held so that as the shafts II II revolve the metal is carried with these rolls and encircles the dies, forming a ring of the size required, the ends overl lapping and being welded by the pressure of the grooved die-roll E. necessary to somewhat encircle the ring by the die, in order that the die may hold the rod and cause it to follow the roll in its revolution.

The operation of the machineis as follows: An attendant takes the metal (which has been cut in the form shown in dotted lines in Fig. 6) from the fire, starts the machine into operation by means of the foot-treadle, and feeds the iron into the rolls. The machine is thrown into gear by the attendant pressing his foot upon the foot-lever, which thus pulls the cam part 0 forward. The spring throws the shipping-ar1n Q out of engagement with the pawl Q which is forced forward by means of its spring, and engages the fixed disk D. The iron being fed into the rolls is formed and welded by their revolutions. Any number of revolutions can be given to the rolls that may seem best. In practice, however, it is found that three revolutions will make satisfactory work, and the relation between the gearing G on the shaft 6 and the gearing M on the shaft M is such as to cause one revolution of the shaft M to three of that of the shaft 6. The grooved dies J J are thus separated, and the cam part 0 isby means of the engagements of the ears 0 0 brought into engagement with the shipping-arm Q, thus unshipping the machine from its drivingpower. The attendant then takes another piece of It has been found panion abutting shaft carrying grooved rolls supported in bearing-blocks from the main shaft and driven bygears on the main shaft,

metal, starts the machine by his foot, and the operation isagain repeated.

What I claim is-- 1. In a machine for forming and welding rings in combination a shaft carrying a flangeroll, abutting companion shafts carrying grooved rolls and actuated from the first-mentioned shaft, a shaft fitted with cams and actuated from the first-mentioned shaft, connections from the bearings in which the abutting shafts are mounted, that extend into the paths of the cams, whereby the abutting shafts are opened and closed, substantially as and for the purpose set forth.

2. In a machine for forming and welding rings, in combination a shaft carrying a flanged roll, companion shafts carrying grooved rolls and mounted in bearing-bl ocks supported on the shaft carrying the flange roll, guideways for the bearing-blocks and means for separating and bringing together the shafts carrying the grooved rolls.

3. In combination in a machine for forming and welding rings, parallel shafting car- .rying companion rolls or dies, the flange of one roll workingin the groove formed by the other two rolls when they are brought to "gether, the aperture formed by the rolls being of an elliptical shape so that the metal fed to them will be pinched and caused to wrapitself about the grooved rolls, and means for separating the rolls, substantially as and for the purpose specified.

4-. In combination in a machine for forming and welding rings, a main shaft located on the machine-frame carrying a roll, com

guideways on the frame of the machine, in which the bearing-blocks slide, and cams for the opening and closing of the grooved rolls, substantially as and for the purpose specified.

5. In combination in a machine for forming and welding rings, shafting carrying companion rolls, bearin g-blocks uniting the shafting, guideways on the machine-frame for holding the bearing-blocksin position, studs from the bearing-blocks extending into the pathway of cams, and means within control of the operator for clutcing the machine to its power, substantially as and for the purpose specified.

6. In combination in a machine for forming and welding rings, die-rolls for forming and welding the ring mounted upon parallel shafts, a cam-carrying shaft parallel with the first-mentioned shafts and driven from the prime shaft, and a shipper on the prime shaft, with connections between the cam-shaft and shipper,whereby the rotation of the cam-shaft unclutches the machine from its power.

7. In a machine for forming and welding rings, in combination with the forming and welding rolls and with the cams for separating the rolls, a clutching and unclutching device consisting of the following elements:

ICO

a spring-pressed pawl having a diagonal camtrack, a notched ratchet-plate, a shipper, a cam-piece holding the shipper in engagement With the pawl, links connecting the campiece with a foot-lever, a spring on the shipper and lugs on the moving part of the machine and on the cam-piece to unship the machine after the formation of each ring, substantially as and for the purpose specified.

8. In a machine for forming and Welding rings, in combination a shaft carrying one of the rolls and mounted on the machine-frame, parallel shafts carrying the companion rolls, and so located that the companion rolls will abut each other and form when together a groove Whose peripheral outline shall be 

